Loans - Nonaccrual Loans By Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	$ 3,735	$ 4,674
Commercial
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	3,041	2,031
Real Estate Construction One-To- Four Family
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	0	191
Real Estate Term Owner Occupied
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	41	135
Real Estate Term Non-Owner Occupied
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	262	1,746
Real Estate Term Other
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	0	39
Consumer Secured By 1st Deed Of Trust
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	302	485
Consumer Other
Nonaccrual Loans By Major Loan Type [Line Items]
Nonaccrual loans	$ 89	$ 47